Home / 278,689.52-384,585.18-151,362.38

Finding the Fourth Proportional to 278,689.52, 384,585.18 and 151,362.38

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Solution

The fourth proportional to 278,689.52, 384,585.18 and 151,362.38 is: 208,876.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,689.52 : 384,585.18 = 151,362.38 : x
  2. Step 2: Convert to fraction form
    278,689.52/384,585.18 = 151,362.38/x
  3. Step 3: Cross multiply
    278,689.52x = 384,585.18 × 151,362.38
  4. Step 4: Simplify right side
    278,689.52x = 58,211,728,157.53
  5. Step 5: Solve for x
    x = 58,211,728,157.53/278,689.52
  6. Step 6: Final answer
    x = 208,876.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.